Does this mean that for this or operator when the Frist argument is true then it returns true and of the Frist argument is false

Answer 1

Worth to know, that for not specifically boolean tasks, or operator assumes the first True argument.
So:
3 or 4 will be 3, as this is the first argument which is True

Answer 2

If at least one of both is True, then 'or' returns True.

Answer 3

Chisom Ndubuizu A or B is True, if A or B is 1.
So
1 or 0=1
0 or 1=1
1 or 1=1
0 or 0=0